JP3022833B2 - Rice mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a rice mill for polishing brown rice, and more particularly to a small and light rice mill suitable for household use.

[0002]

Conventionally, as this kind of rice mill, as described in, for example, Japanese Utility Model Laid-Open No. 57-103130, a rice-milling wing and a screw conveyor are integrally driven by a motor to rotate. Refined rice transferred from the tank to the polishing rice bran room by the screw conveyor,
There is known a method of separating rice bran from polished rice by polishing rice using the centrifugal force of the rice polishing blade. However, although a rice mill having such a structure is suitable for milling a large amount of refined rice, the entire apparatus becomes large, making it unsuitable for owning and polishing rice in ordinary households. .

On the other hand, it is not a rice mill,
Japanese Patent No. 328 discloses a relatively small size in which soft grains such as sesame and chestnut are put into a mixing tank as a container and the scraper and the rotating blades are rotated in opposite directions to remove the epidermis of the grains. Has been proposed. These devices remove the cereal epidermis by energizing the electric motor for a predetermined time to rotate the scraper and the rotary blade.

However, in the case of rice, there are various degrees of milling such as white rice and 7-minute milling, and the type of rice to be milled and the preference of the user. Although it is desirable that this is the case, in such a configuration, fine adjustment must be performed each time to obtain the desired amount and degree of milled rice, and there is a problem that the operation becomes cumbersome.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a rice mill for household use in which the trouble of finely adjusting the rice milling degree according to the amount of rice and the user's preference is reduced. .

[0006]

According to a first aspect of the present invention, there is provided a tabletop rice polishing machine comprising: an electric motor;
A rice milling container having a side wall and / or a bottom formed in a net shape, a rice milling blade provided in the rice milling container and rotating with the rotation of the electric motor, operating means, and rice milling amount setting means for designating the milling amount A rice milling degree setting means for arbitrarily specifying the milling degree, and a drive time and an electric power supply ratio of the electric motor according to the milling quantity specified by the milling quantity setting means, and a driving time according to the milling quantity. Control means for controlling the driving of the electric motor by calculating a driving time and a power supply rate in consideration of the rice polishing degree designated by the rice polishing degree setting means from the power supply rate, and driving the electric motor by the control means. When the rice milling degree of the rice grains is insufficient by control, an additional milling switch for driving the electric motor for an arbitrary time, and the above-described milling when the additional milling switch is used to mill rice to a predetermined milling degree. And storage means for storing the total drive time and power supply ratio of the motive as data provided, in which the motor drive capable of controlling, based on the data stored in the storage means.

According to the first aspect of the present invention, when rice grains are stored in a rice milling container, the amount of the stored rice, the degree of milling, and the like are set, and the electric motor is driven to rotate the milled rice blades, Milling is performed by rubbing the rice mills with each other or the rice grains. In addition, when the rice milling degree is insufficient, the motor is driven by the additional milling switch for an arbitrary period of time, and the total driving time of the motor and the power supply ratio when rice is milled to a predetermined milling degree are data. Is stored in the storage means, and in the next rice polishing, rice polishing is performed based on the stored data. Thus, once the daily milling amount and milling degree are determined, it is possible to constantly perform appropriate milling without having to input the amount of rice to be stored in the milling container every day from the operating means,
Operation is easy.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the rice mill according to the present invention will be described below with reference to the accompanying drawings. In FIG. 1 showing an overall cross-sectional view of the present invention, reference numeral 1 denotes a main body case forming an outer shell of a rice polishing machine, and a bottom cover 2 is attached to an open lower surface of the main body case 1. The main body case 1 has a through hole 3A formed in the center of the bottom thereof, and a cylindrical concave portion 3 having a bottom surface formed in an inclined surface shape. A cylindrical portion 3B having an open top is formed around the through portion 3A. In addition, a bran discharge port 3C, which is a bran discharge means protruding to the side of the main body case 1, is formed on the bottom surface of the concave portion 3 formed in an inclined surface shape. A plate-shaped frame 4 is mounted and fixed between the main body case 1 and the bottom cover 2, and a motor 5 is mounted on one upper surface of the frame 4 in a downward direction. The rotating shaft 6 of the electric motor 5 penetrates the frame 4 and protrudes downward, and a pulley 7 is attached to a tip of the rotating shaft 6.

On the other side of the frame 4, there is formed a recessed bearing fitting portion 4A which is lowered. A bearing case 8 is provided on the upper surface of the frame 4 so as to cover the bearing fitting portion 4A. Bearing case 8
The upper part of the center is provided with a convex bearing fitting portion 8A protruding upward.
The bearing 9 is fitted and fixed in the bearing fitting portion 8A, and another bearing 10 is fitted and fixed in the bearing fitting portion 4A. A drive shaft that penetrates the frame 4 by the pair of upper and lower bearings 9 and 10.
11 is rotatably supported so that its central axis is in the vertical direction. The upper end of the drive shaft 11 is disposed in the tubular portion 3B via the through hole 3A, and the lower connector 12 is fixed thereto. The lower end of the drive shaft 11 is
Another pulley 13 which is located below the frame 4 and forms a pair with the pulley 7 is fixed thereto. An endless drive belt 14 is mounted between the pulleys 7 and 13, and the rotational force from the electric motor 5 is transmitted to the drive shaft 11.

Inside the concave portion 3, a bottomed cylindrical rice-milling container 17 for accommodating brown rice as refined rice is removably mounted. The periphery of the bottom of the milling vessel 17 is formed in a wire mesh shape, and a convex bearing cylinder 18 projecting upward is formed in the center of the bottom. 19 is formed. The driven shaft 20 penetrating through the shaft hole 19 is rotatably supported so that the center axis thereof is in the vertical direction. An upper connector 21 that engages with the lower connector 12 is attached and fixed to the lower end of the driven shaft 20.
The lower connector 12 and the upper connector 21 are
The rotation of the drive shaft 11 is
A coupling 22 for transmitting to the side is formed.

On the upper part of the driven shaft 20, a milling blade 24 provided with a milling blade 23 is detachably mounted. Milled rice wings
Reference numeral 23 is provided inside the rice polishing container 17 and extends radially around the driven shaft 20. And rice milling container 17
Is mounted in the recess 3, the driven shaft 20 is positioned coaxially with the drive shaft 11, the lower connector 12 and the upper connector 21 are engaged and connected, and the driven shaft 20 The polished rice blade body 24 rotates. 25 is
A lid is provided to cover the recess 3 and the upper part of the rice polishing container 17 so as to be detachable. The cover 25 is provided with a transparent window 26 facing the upper opening of the rice polishing container 17.
Reference numeral 27 denotes an operation panel as operation means including various switches. Inside the operation panel 27, a circuit board 28 is mounted. 29 is a rubber leg as a leg.

Next, the electrical configuration of this embodiment will be described with reference to the block diagram of FIG. In the figure, reference numeral 31 denotes a power supply circuit which performs full-wave rectification of an alternating current from a 100 V AC commercial power supply (not shown). And
The current that has been full-wave rectified by the power supply circuit 31 is supplied to the drive circuit 32
Is supplied to the electric motor 5 via the motor. The drive circuit 32 is connected to a control circuit 33 that controls the energization of the electric motor 5.
The control circuit 33 is composed of a microcomputer or the like, and includes a rice polishing switch 34 as an operating means, an additional rice polishing switch 35, a rice polishing amount setting means 36, a one-piece switch 37, a two-piece switch 38, a three-piece switch 39, and a four-piece switch. 40, rice polishing degree setting means 41, storage switch 42 as storage means and RAM 43 are connected to each other. The RAM 43 is desirably an SRAM capable of holding stored contents with low power, an FRAM (Ferroelectric RAM) capable of holding data without power, or the like.

Next, the operation of the above configuration will be described with reference to the flowchart of FIG. With the lid 25 opened, the rice polishing container 17 is attached to the recess 3 and the rice polishing container
A milling blade 24 is mounted inside 17 and a predetermined amount of brown rice is put into it. Then, the upper opening of the concave portion 3 is closed by the lid 25, and the power is turned on (step S1). In the next step S2, when designating the amount (total number) of brown rice stored in the milled rice container 17, a corresponding one of the one-to-one switch 37 to four-to-one switch 40 constituting the operation panel 27 is selected. Operate. In response to this, the control circuit 33 calculates the driving time of the electric motor 5 and the data of the electric power supplied to the electric motor 5,
Read from RAM43.

More specifically, when the one-piece switch 37 is operated in step S3, the drive time t of the electric motor 5 is specified to be 100 seconds in the next step S4, and full-wave rectification is performed in the power supply circuit 31. The power supply ratio s is specified as 7/10 so that the electric power is supplied to the motor 5 at a rate of 7 out of 10 waves among the DC power waves. Such a setting is made because, when only a small amount of brown rice is contained in the milling vessel 17 and the milling blade 24 is rotated, the resistance of the milling blade 24 to each rice grain is small. This is because the rotation of the polished rice blade body 24 becomes too high, and the brown rice may be broken and chipped, or the temperature of the rice grains may be increased, thereby deteriorating the taste.

In step S5, a two-piece switch
By operating 38, in the next step S6, the drive time t of the electric motor 5 is specified to be 160 seconds, and among the DC power waves that are full-wave rectified by the power supply circuit 31, 8 out of 10 waves The power supply ratio s is specified to be 8/10 so that the electric power is supplied to the electric motor 5 at the ratio. When the three-way switch 39 is operated in step S7, the drive time t of the electric motor 5 is specified to be 220 seconds in the next step S8, and the DC power of each wave of the DC power that is full-wave rectified by the power supply circuit 31 is set. Among them, the power supply ratio s is specified as 9/10 so that power is supplied to the motor 5 at a rate of 9 out of 10 waves. Further, when the four-way switch 40 is operated, in step S9,
The drive time t of the electric motor 5 is specified to be 280 seconds,
The power supply ratio s is specified as 1 so that all the waves of the DC power that is full-wave rectified by the power supply circuit 31 are supplied to the electric motor 5.

After the control circuit 33 designates the drive time t of the electric motor 5 and the supply ratio s of electric power in accordance with the amount of brown rice stored in the milled rice container 17, the milling degree setting means 41 sets, for example, white rice or 7 The milling degree x such as minute polishing is designated (step S10). The milling degree x is set, for example, by a milling degree setting means 41 comprising a variable resistor or a switch corresponding to a predetermined milling degree. Then, the control circuit 33 calculates the driving time t ′ (= t × f (x)) of the electric motor 5 and the electric power to the electric motor 5 based on the value (x ≦ 1) of the rice polishing degree x specified by the rice polishing degree setting means 41. Then, the supply ratio s ′ (= s × g (x)) is calculated (step S11).

In this manner, the power supply ratio s 'to the motor 5 in consideration of the milling degree x and the driving time t' of the motor 5
Is specified, the rice polishing switch 34 in step S12 is operated. Then, in the next step S13, the motor 5 is driven via the drive circuit 32 by the control signal from the control circuit 33.
Drives. The driving force of the electric motor 5 is
Then, the milling blade body 24 is rotated through the drive belt 14, the pulley 13, the drive shaft 11, the coupling 22, and the driven shaft 20. And, by rotating this rice milling blade body 24, the rice milling container
The brown rice in 17 rubs against each other, or the brown rice and the rice polishing container 17 rub against each other, whereby the brown rice is polished. At this time, the bran scraped from the brown rice passes through the recess 3 and the bran discharge port 3C from around the bottom of the milled rice container 17 formed in a wire mesh shape, and passes through the bran receiver 3D provided outside the main body case 1. Is discharged into

Thereafter, in step S14, when the designated drive time t 'has elapsed, the control circuit 33
Supply of the control signal to is stopped. Thereby, the electric motor 5
And the rotation of the milled rice blade body 24 also stops (step S1).
5). At this time, the user uses the window 26 of the lid 25 to
The rice grains in 17 are visually recognized (step S16), and if the desired degree of milling is achieved, the milling is terminated at this point (step S16).
17). Conversely, if the degree of rice polishing is insufficient in step S16, the additional rice polishing switch 35 is operated to drive the electric motor 5 for an arbitrary time, that is, rotate the rice polishing blade body 24, and perform rice polishing again ( Step S18).

While the additional milling switch 35 is being pressed, the terminal of the additional milling switch 35 is closed and the milling blade 24 is rotated. However, when the finger is released from the additional milling switch 35, the additional milling switch 35 is turned on. After returning, the terminal is opened and the rotation of the milled rice blade body 24 also stops. Therefore, after the rice is milled to a predetermined milling degree, when the additional milling switch 35 is released, the electric motor 5, that is, the milled blade 24 is stopped, and the milling is finished (step S18). At this time, the total drive time T of the electric motor 5 and the power supply ratio S are temporarily stored in the control circuit 33.

When the user finds the optimal rice milling time, the user operates the memory operation switch 42 to activate the control circuit 33.
The total driving time T and the power supply ratio S of the electric motor 5, which are temporarily stored in the RAM 43, are transferred and stored in the RAM 43. Thereafter, when the rice polishing switch 34 is operated without specifying the rice polishing amount in step S2 (step S21), if the data T and S are stored and held in the RAM 43 in step S22, the stored data T and S S to control circuit 33
Is read (step S23), and the control of the electric motor 5 based on the data T and S causes the rice hull for a predetermined time T.
By rotating 24, the rice in the rice polishing container 17 is milled.

As described above, in the above-described embodiment, the electric motor 5, the milled rice container 17 whose bottom is formed in a net shape, and the milled rice blades 24 provided in the milled rice container 17 and rotating with the rotation of the electric motor 5 are described. Operation panel 27 as an operation means,
Milling amount setting means 36 for specifying milling amount, milling degree adjusting means 41 as milling degree setting means for arbitrarily specifying milling degree, control circuit 33 as control means for driving and controlling motor 5, and driving data of motor 5 As a storage means for arbitrarily storing data
43 is provided, and the driving of the electric motor 5 can be controlled based on the driving data of the electric motor 5 stored in the RAM 43.

In this case, rice grains are stored in the rice milling container 17,
When the rice milling blade body 24 is rotated by driving the electric motor 5 by designating the amount of the stored rice, the milling degree x, and the like, the milling is performed by rubbing the rice grains or the rice grains with the milling container 17. In addition, when the rice milling degree is insufficient, the additional milling switch is used to drive the electric motor 5 for an arbitrary period of time, and when the rice is milled to a predetermined rice milling degree, the total driving time of the electric motor 5 and the power supply ratio. With data as R
The rice is stored in the AM 43, and in the next rice polishing, the rice is milled based on the stored data. Thus, once the amount of milled rice and the degree of milling x are determined once, the amount of rice to be stored in the milled rice container 17 every day is controlled by an operation panel as an operating means.
Even without inputting from 27, appropriate rice polishing can be performed at all times, and the operation can be simplified. Therefore, the trouble such as the driving time of the electric motor 5 related to the amount of stored rice and the milling degree x can be reduced.

In this embodiment, the main body case 1, the electric motor 5 provided in the main body case 1, the substantially cylindrical concave portion 3 formed in the main body case 1, the bottom portion is formed in a net shape and the concave portion is formed. In the rice mill having a rice mill 17 removably attached to the rice mill 3 and a rice milling blade 24 provided in the rice mill 17 and rotating with the rotation of the electric motor 5, the lowermost portion of the bottom surface of the concave portion 3 A bran discharge port 3C as a bran discharge means for discharging the bran from the main body case 1 to the outside is formed, and a bran receiver 3D for receiving the bran discharged from the bran discharge port 3C is provided.

With such a configuration, rice grains are stored in the milled rice container 17 and the electric motor 5 is driven so that the milled rice blades
The rice is milled by rotating the rice grains 24 and rubbing each other or the rice grains with the milling vessel 17. Then, as a result of the production of rice, the rice bran is discharged into the rice bran receiver 3D provided outside the main body case 1 through the rice discharge port 3C serving as the rice bran discharging means. Therefore, the bran does not accumulate in the main body case 1 and the bran can be easily cleaned, and the inside of the concave portion 3 can be kept hygienic.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made within the gist of the invention.
For example, as long as the control described in the present invention is performed, the structure of the tabletop rice mill is not limited to that of FIG.
For example, the rice milling container 17 has a bottom formed in a wire mesh shape,
The point is that the rice grains and the wire mesh only need to be rubbed, so that not only the bottom portion of the rice milling container 17 but also the side wall portion may be formed in a wire mesh shape,
Only the side wall of the rice polishing container 17 may be formed in a wire mesh shape.

[0026]

According to the first aspect of the present invention, there is provided a rice mill having a motor, a rice mill having a side wall and / or a bottom formed in a net shape, and a rice mill provided in the rice mill and rotating with the motor. Rotating rice blade, operating means, milling amount setting means for specifying the milling amount, milling degree setting means for arbitrarily specifying the milling degree, and the electric motor according to the milling amount specified by the milling amount setting means The driving time and the power supply ratio are designated, and the driving time and the power supply ratio are calculated from the driving time and the power supply ratio according to the rice polishing amount in consideration of the rice polishing degree specified by the rice polishing degree setting means. Control means for controlling the driving of the electric motor, an additional rice polishing switch for driving the electric motor for an arbitrary time when the degree of rice polishing is insufficient by the control of the electric motor by the control means, And storage means for storing the total drive time and power feed rate of the electric motor when performing milled to a predetermined rice degree rice switch as data provided,
The electric motor is configured to be drive-controllable based on the data stored in the storage means, and is used at home for reducing the troublesome fine adjustment of the degree of rice polishing according to the amount of rice or the user's preference. We can provide table rice mill.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rice polishing machine showing one embodiment of the present invention.

FIG. 2 is a block diagram of the above circuit.

FIG. 3 is a flowchart of the above control.

[Explanation of symbols]

 3C bran discharging means 3D bran receiver 5 motor 17 milling vessel 24 milling blade 32 drive circuit 33 control circuit (control means) 35 additional milling switch 41 milling degree setting means 42 storage operation switch (storage means) 43 RAM (storage means) 44 1 go switch (operating means) 45 2 go switch (operating means) 46 3 go switch (operating means) 47 4 go switch (operating means) 48 Milling switch (operating means) 49 Re-milling switch (operating means) 50 Memory switch (Operation means)

Claims (1)

(57) [Claims] 1. An electric motor, a rice milling container having a side wall and / or a bottom formed in a net shape, a rice milling blade provided in the rice milling container and rotating with the rotation of the electric motor,
Operation means, milling amount setting means for specifying the milling amount, milling degree setting means for arbitrarily specifying the milling degree, and supply of the drive time and power of the electric motor according to the milling amount specified by the milling amount setting means From the driving time and the power supply ratio according to the rice polishing amount, a driving time and a power supply ratio are calculated in consideration of the rice polishing degree specified by the rice polishing degree setting means, and the drive control of the electric motor is performed. Control means for performing
When the degree of milling of the rice grains was insufficient by the control of the electric motor by the control means, an additional milling switch for driving the electric motor for an arbitrary time, and milling was performed to a predetermined milling degree by the additional milling switch. Storage means for storing, as data, the total drive time and power supply ratio of the electric motor at the time, and the motor can be driven and controlled based on the data stored in the storage means. Rice mill.